JP5726762B2 - Closed-loop power control for multi-carrier high-speed uplink packet access - Google Patents

Description

  The following description relates generally to wireless communication systems, and particularly to multi-carrier independent power control for high-speed uplink packet access (HSUPA).

  Wireless communication systems are widely deployed to provide various forms of communication content, such as voice, data, and the like. These systems may be multi-access systems that can support communication with multiple users by sharing available system resources (eg, bandwidth and transmit power). Examples of such multi-access systems are code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, 3GPP long term evolution (LTE) systems including E UTRA And an Orthogonal Frequency Division Multiple Access (OFDMA) system.

  Orthogonal frequency division multiplexing (OFDM) communication systems effectively divide the entire system bandwidth into a number of (NF) subcarriers, which can be referred to as frequency subchannels, tones, or frequency bins. In an OFDM system, transmission data (ie, information bits) is first encoded by a specific encoding scheme to generate encoded bits, and the encoded bits are further grouped into multi-bit symbols and then modulated symbols. Is mapped to Each modulation symbol corresponds to a signal point location defined by a particular modulation scheme (eg, M-PSK or M-QAM) used for data transmission. At each time interval that may depend on the bandwidth of each frequency subcarrier, a modulation symbol may be transmitted on the NF frequency subcarrier. Thus, OFDM can be used to address intersymbol interference (ISI) caused by frequency selective fading and characterized by different attenuations across the system bandwidth.

  Typically, a wireless multiple-access communication system can simultaneously support communication for multiple wireless terminals communicating with one or more base stations via transmissions on the forward and reverse links. The forward link (or downlink) relates to the communication link from the base station to the terminal, and the reverse link (or uplink) relates to the communication link from the terminal to the base station. This communication link may be established via a single input single output, other input single output or other input multiple output (MIMO) system.

  A problem with wireless systems relates to multi-carrier control for high-speed uplink packet access (HSUPA). In general, HSUPA uses a packet scheduler, but user equipment or equipment can request permission to send data, and the scheduler determines when and how many devices are allowed to do so. Operates on the request-grant principle. The communication request includes data regarding the state of the transmission buffer and the queue at the device and its available power margin. In addition to this scheduled mode of transmission, applicable standards also indicate a non-scheduled, self-initialized transmission mode from the device. However, with respect to transmit power and multi-carrier control, previous systems could only achieve such control via power control universally applied to all carriers. The type of non-independent control across carriers has made it difficult to regulate power between carriers and to control interference between devices and / or channels. Furthermore, in addition to non-independent control, the multi-carrier control system did not have the ability to properly increase or decrease the power distribution between carriers when conditions affected. This lack of control independence and scaling has made it very difficult to achieve the desired quality of service.

Priority Claims Under Patent Act §119 This application is named “USER EQUIPMENT POWER CONTROL WITH MULTIPLE CARRIERS” and is filed on February 9, 2009, US provisional patent application no. The benefit of 61 / 150,942 is claimed and is incorporated herein by reference in its entirety.

  The following presents a simplified summary in order to provide a basic understanding of some aspects of the claimed subject matter. This summary is not an extensive overview and is not intended to identify key / critical elements or to delineate the scope of the claimed subject matter. Its sole purpose is to provide some concepts in a simplified form as a prelude to the more detailed description that is presented later.

  Systems and methods are provided for controlling power settings across multiple wireless carriers in an independent manner for high-speed packet access networks. In one aspect, a power control method for a wireless carrier is provided. Independent closed loop control can be applied to one or more carriers of a multi-carrier set. The method includes responding to power-up and power-off commands over a number of carriers and dividing an allowable power distribution across at least two wireless carriers in response to power-up and power-down. In another aspect, the method includes ranking carrier channels in a sequential manner according to priority and allocating power to the channels according to ranking. In one example, the ranking can be based on signal quality parameters. In yet another aspect, the method includes analyzing power characteristics across a group of carrier channels in a parallel manner and allocating power to the channels according to the group characteristics. Dynamic ranking and power analysis is evaluated over time and can be applied when power is ranked or assigned based on evaluation or monitoring.

  To the accomplishment of the aforementioned related goals, certain illustrated aspects are described herein in connection with the following description and the annexed drawings. However, these aspects employ the principles of the claimed subject matter, and that various aspects of the claimed subject matter are intended to include all such aspects and their equivalents. Some are shown. Other advantages and novel features will become apparent from the following detailed description when considered in conjunction with the drawings.

1 is a high level block diagram of a system that provides independent multi-carrier power control for a wireless communication system. FIG. It is a figure which shows the power increase / decrease (power scaling) for the multicarrier power control of a radio | wireless communications system. 2 illustrates an example power control method for a wireless communication system. 2 illustrates an example power control method for a wireless communication system. 2 illustrates an example power control method for a wireless communication system. Fig. 4 illustrates an example logical module for multi-carrier power control. Fig. 4 illustrates an example logic module for alternative multi-carrier power control. 1 illustrates an example communication device using multi-carrier power control. 1 illustrates a multiple access wireless communication system. 1 illustrates an example communication system. 1 illustrates an example communication system.

  Systems and methods are provided for controlling power across multiple carriers in a wireless network. In one aspect, a method for wireless communication is provided. The method includes applying independent power control to two or more carriers from a set of high-speed packet access signals. The method includes monitoring power across two or more carriers to determine a power level for a set of high speed packet access signals. The method also includes automatically adjusting at least one of the independent power controls in view of the power level determined for the set of high-speed packet access signals.

  In one or more exemplary embodiments described herein, the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. For example, without limitation, this type of computer readable medium may be in the form of RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage, or instructions or data structures. Or any other medium that can be used to deliver or store the program code and that can be accessed by a computer. Also, any connection is properly termed a computer-readable medium. For example, software may be transmitted from a website, server or other remote signal source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, radio and microwave. For example, then, wireless technologies such as coaxial cable, fiber optic cable, twisted pair, DSL or infrared, radio and microwave are included in the definition of media. As used herein, disc and disc are compact disc (CD), laser disc (registered trademark), optical disc, digital versatile disc (DVD), floppy disc (registered trademark) and Blu-ray Disc. including. However, the disk normally reproduces data magnetically, while the disc optically reproduces data with a laser. Combinations of the above should also be included within the scope of computer-readable media.

  Referring to FIG. 1, system 100 provides multicarrier power control to wireless communication network 110. However, closed loop control is used to adjust the transmission power of the user equipment in an independent manner between multiple carriers. The system 100 includes one or more base stations 120 (also referred to as nodes, evolved node B-eNBs, serving eNBs, target eNBs, femto stations, pico stations), which communicate with various devices 130 via the wireless network 110. Can be an entity that can communicate with each other. For example, each device 130 can be an access terminal (also referred to as a terminal, user equipment, mobile management entity (MME) or mobile device). The device 130 may include an independent power and increase / decrease controller 140 provided to manage power across multiple wireless carriers. This type of control 140 is responsive to a power increase or decrease command 150 issued from the base station 120. For example, at 154, various carriers that are independently controlled by the controller 140 (eg, each carrier has separate closed loop control) may be generated.

  As shown, base station 120 communicates to device 130 (or devices) via downlink 160 and receives data via uplink 170. Since the device 130 can transmit data via the downlink and receive data via the uplink channel, designations such as uplink and downlink are arbitrary. Although two components 120 and 130 are shown, more than one component may be used for the network 110. However, such additional components may also apply to the power control described herein. It is further noted that although control 140 generally applies to high speed uplink packet access (HSUPA), this type of control can also be applied to high speed downlink packet access (HSDPA) or even other wireless protocols. The

  In general, control 140 adjusts power settings across multiple wireless carriers in an independent manner for high-speed packet access networks. In one aspect, a power control method for a radio carrier is provided when the closed loop control 140 can be applied to one or more carriers of a multi-carrier set. The method includes responding to a power up and power down command 150 across multiple carriers and dividing the allowed power across at least two wireless carriers in response to the power up and power down commands. In other aspects, the method includes ranking the carrier channels in a sequential manner according to priority and allocating power to the channels according to the ranking. In one embodiment, the ranking can be based on signal quality parameters. In yet another aspect, the method includes analyzing power characteristics across a group of carrier channels in a parallel manner and allocating power to the channels according to the group characteristics. Dynamic ranking and power analysis can be applied when channels are evaluated and ranked over time or allocate power based on evaluation or monitoring.

  In general, a rule or policy should be specified by multiple carriers to increase or decrease power when UE or device 130 does not have enough power to follow a power control “up” command at 150. Typically, UE 130 first combines radio power control (RPC) commands from the active set of cells. If the command is “up” and the UE 130 does not have the power to support it, the power increase / decrease is applied. Typically, increased and dedicated physical dedicated channel (E-DPDCH) when other power is increased or decreased equally so that the rate between them is maintained, and when RPC is independent of each carrier The power is reduced first. Rules may be applied to increase or decrease E-DPDCH when UE 130 statically divides its maximum transmit power in the carrier in one aspect.

  In other aspects, greedy filling algorithms are ranked by the priority that carriers may depend on, for example, channel quality, grants, current data rate and anchor or non-anchor carriers. Typically, 150 “down” commands are applied first, where the carrier with the “up” command can receive at least a constant transmission power. The remaining power can be calculated and distributed among the carriers with “up” commands. The transmit power on each carrier can be calculated in order to satisfy the power on the carrier of choice determined by the above priority. The available power can be used by the current carrier during consideration.

  In yet another aspect, a junction filling algorithm can be applied when the transmit power is calculated in a combining manner across the channels. Optimization techniques can be applied. One example is a water-filling scheme. Typically, 150 “down” commands are applied first, and carriers with “up” commands receive at least unchanged transmission power. The remaining power is calculated and distributed among the carriers with “up” commands. The transmission power of each carrier is calculated by the joining method. For example, water injection techniques can be applied when maximum data rate is the goal. The irrigation algorithm can allocate more power to subchannels that degrade good conditions, for example, may allocate less power or not allocate power to poorly conditioned subchannels.

  As mentioned above, the system 100 supports a wireless communication method that includes applying independent power control 140 to two or more carriers from a set of high-speed packet access signals. This is done by monitoring the power over two or more carriers to determine the power level of a set of high-speed packet access signals and taking into account the power level determined for the set of high-speed packet access signals. Automatically adjusting at least one of the independent power controls. Independent power control is incrementally controlled as up or down control 150. However, up represents an increase in power and down represents a decrease in power. The system 100 and method includes statically dividing power across two or more carriers. However, independent power control is available for high-speed uplink packet access network (HSUPA), high-speed downlink packet access network (HSDPA), enhanced data channel (E-DCH), enhanced dedicated physical data channel (E DPDCH), or high-speed dedicated physical Applied according to the data channel (HS-DPDCH). This includes sequential methods and sequencing two or more carriers and sequentially controlling the power level between the two or more carriers.

  The method also places two or more carriers in a sequential manner such that the two or more carriers are ordered according to priority including channel quality parameters, grants, current data rate, anchor carrier state or non-anchor carrier state. Increasing or decreasing can be included. The method also includes applying a down command before controlling the power level between the two or more carriers and calculating and allocating power between the two or more carriers including the up command. This includes sequentially charging power to two or more carriers according to priority.

  The method also includes calculating power across two or more carriers in a parallel manner and jointly controlling power levels across two or more carriers. This applies a down command before increasing or decreasing the power level across two or more carriers in a parallel manner and controlling the power level between two or more carriers. The method also calculates and distributes power between two or more carriers with an up command and calculates a maximum data rate, eg, distributes power over two or more carriers according to a water injection algorithm including.

  The system 100 can be used by an access terminal or mobile device, for example, an SD card, a network card, a wireless network card, a computer (including a laptop, a desktop, a personal digital assistant (PDA)), a mobile phone, a multi It is noted that it can be a module such as a functional phone or any other suitable terminal that can be utilized to access the network. The terminal accesses the network via an access component (not shown). In one embodiment, the connection between the terminal and the access component may actually be wireless, the access component may be a base station, and the mobile device is a wireless terminal. For example, terminals and base stations include, but are not limited to, time division multiple access (TDMA), code division multiple access (CDMA), frequency division multiple access (FDMA), orthogonal frequency division multiplexing (OFDM), FLASH OFDM, orthogonal frequency division multiplexing. Communication can be via any suitable wireless protocol, including access (OFDMA) or any other suitable protocol.

  The access component can be an access node associated with a wired network or a wireless network. To that end, for example, the access component can be a router, a switch, or the like. An access component can include one or more interfaces, eg, a communication module, for communicating with other network nodes. Further, the access component can be a base station (or wireless access point) in a cellular network. Base stations (or wireless access points) are utilized to provide wireless coverage to multiple subscribers. Such a base station (or wireless access point) may be arranged to provide an adjacent area of service area to one or more mobile phones and / or other wireless terminals.

  Referring to FIG. 2, the power increase or decrease is shown for a multi-carrier wireless system. In this aspect, user device 200 is shown. However, the power increase / decrease 210 is applied to the multiple carrier set 220. Typically, even if all (or some) of the carriers in the set receive a “down” command, the user equipment 200 can be determined by the determined threshold that is monitored and activated by the closed loop control described above. It is possible to exceed the maximum allowable electric output level. The power increase / decrease 210 can be applied to control the total power of the multicarrier set 220 when the power threshold is exceeded.

  Referring to FIGS. 3-5, an example independent power control method is shown. For simplicity of explanation, the method (and other methods described herein) have been shown and described as a series of actions, but according to one or more aspects, It should be understood and appreciated that the method is not limited by the order of action, as it may occur 4 in a different order and / or simultaneously with other actions other than those shown and described herein. . For example, those skilled in the art will understand and appreciate that a method could be selectively represented as a series of interrelated states or events, such as in a state diagram. Moreover, not all illustrated acts can be used to implement a methodology in accordance with the claimed subject matter. In general, the method may be implemented as processor instructions, logical program functions, or other electronic sequences that support the independent multi-carrier power controller described herein.

  Proceeding to 310 in FIG. 3, when a UE or device does not have enough power to comply with a power control “up” command, a rule or policy may be identified by multiple carriers for power increase or decrease. At 320, the UE or device combines radio power control (RPC) commands from the active set of cells. If the command is “up” and the UE does not have the power to support it, the power increase / decrease is applied. At 330, the enhanced dedicated physical dedicated channel (E DPDCH) power is increased if the other power is increased or decreased equally so that the ratio between the other powers is maintained, and if the RPC is independent of each carrier. May decrease. At 340, rules for increasing or decreasing E-DPDCH may be applied when the UE statically divides its maximum transmit power between carriers from multiple carrier subsets in one aspect.

  Proceeding to FIG. 4, a sequential method 400 of power control is described. In this aspect, a greedy filling algorithm may be applied when carriers are ordered by priority. At 410, one or more priority parameters are analyzed. For example, such parameters can depend on, for example, channel quality, grant, current data rate and anchor or non-anchor carrier. At 420, based on the analysis at 410, the individual carriers are ordered by priority. At 430, a power up or down command is applied as needed. For example, a “down” command may be applied first when a carrier with an “up” command can receive power that is at least unchanged. The remaining power can be calculated and distributed among the carriers with “up” commands. At 440, the transmit power of each carrier may be sequentially calculated and applied to fill the selected carriers, which in turn are determined by the above priorities, with power. Available power may be used by the current carrier during consideration.

  Proceeding to FIG. 5, the joint filling algorithm can be determined at 510 if the transmit power is calculated in a joint manner across the channels. At 520, power up or down commands are applied as needed. For example, a “down” command can be applied first, and a carrier with an “up” command can receive at least unchanged power. The remaining power can be calculated and distributed among the carriers with “up” commands. At 530, the transmit power of each carrier is calculated and applied in a joining method. At 540, any optimization technique may be applied. One example is a water injection system. For example, water injection techniques can be applied at 540 where maximum data rate is the goal. The irrigation algorithm can distribute more power to subchannels that experience good conditions, for example, may distribute less power to poorly conditional subchannels or not distribute power May be.

  The technical processes described herein may be implemented by various means. For example, these techniques may be performed in hardware, software, or a combination thereof. For hardware implementation, the processing unit may include one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processors (DSPDs), programmable logic devices (PLDs), field programmable gates. It may be implemented in arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, other electronic devices designed to perform the functions described herein, or combinations thereof. For software, implementation may go through modules (eg, procedures, functions, etc.) that perform the functions described herein. The software code may be stored in a memory device and executed by a processor.

  With reference to FIGS. 6 and 7, a system for wireless signal processing is provided. A system is represented as a series of interrelated functional blocks, which can represent functions performed by a processor, software, hardware, firmware, or any suitable combination thereof.

  With reference to FIG. 6, a wireless communication system 600 is provided. System 600 includes means for controlling two or more carriers from logic module 602 or a set of high-speed packet access signals. This includes means for determining the power level for the logic module 604 or set of high-speed packet access signals. This also includes means for adjusting the carrier power in an independent manner, taking into account the power level determined for the logic module 606 or a set of high-speed packet access signals.

  With reference to FIG. 7, a wireless communication system 700 is provided. System 700 includes means for controlling two or more carriers in a manner independent of logic module 702 or a set of high-speed packet access signals. This includes means for monitoring the power level for logic module 704 or a set of high-speed packet access signals. This also includes means for increasing or decreasing the total carrier power in view of the power level determined for the logic module 706 or set of high speed packet access signals.

  In another aspect, a communication device is provided. This provides independent power control for two or more carriers from a set of high-speed packet access signals, determines power over two or more carriers to determine the power level for a set of high-speed packet access signals, and A memory holding instructions for adjusting at least one of the independent power controls in consideration of a power level determined for the set of high-speed packet access signals and a processor for executing the instructions.

  In another aspect, a computer program product is provided. This includes a computer readable medium containing code for controlling power. The code allows the computer to control power for more than one carrier from a set of high-speed packet access signals, and between two or more carriers to determine the power level for a set of high-speed packet access signals. Code for causing the computer to monitor power and code for causing the computer to adjust at least one of the independent power controls in view of the power level determined for the set of high speed packet access signals.

  In another aspect, a method for wireless communication is provided. It performs independent power control for two or more carriers from a set of high-speed packet access signals, and monitors power across two or more carriers to determine the power level for a set of high-speed packet access signals Automatically scaling at least one of the independent power controls in view of the determined force for the set of high-speed packet access signals.

  In yet another aspect, a communication device is provided. This gives independent power control to two or more carriers from a set of high-speed packet access signals, and determines the power of two or more carriers to determine the power level for a set of high-speed packet access signals. A memory holding instructions for scaling independent power control in view of the power level determined for the set of high-speed packet access signals, and a processor for executing the instructions.

  In yet another aspect, a computer program product is provided. This includes a computer readable medium containing code for controlling power, the code comprising a code for causing a computer to control power for two or more carriers from a set of high speed packet access signals and a set of high speed packets. Consider the code that causes the computer to monitor power over two or more carriers to determine the power level for the access signal and the power level determined for the set of high-speed packet access signals. And a code for collectively increasing / decreasing power with respect to two or more carriers. This also includes processing for a group of carriers. This includes sequential control, a set of packet access signals or a set of packet access signals, decision power, and the like.

  FIG. 8 shows a communications apparatus 800 that can be, for example, a wireless communications apparatus such as a wireless terminal. Additionally or alternatively, the communication device 800 can reside in a wired network. Communication device 800 can include a memory 802 that can retain instructions for performing signal analysis at a wireless communication terminal. Additionally, the communication device 800 may include a processor 804 that can execute instructions in the memory 802 and / or instructions received from other network devices, which instructions constitute or operate the communication device 800 or an associated communication device. Can be related to

  Referring to FIG. 9, a multiple access wireless communication system 900 is shown. Multiple access wireless communication system 900 includes a number of cells including cells 902, 904, and 906. In an aspect, system 900, cells 902, 904, and 906 can include a Node B that includes multiple sectors. Multiple sectors are formed by groups of antennas, each antenna being able to respond to communication with UEs in a portion of the cell. For example, in cell 902, antenna groups 912, 914, and 916 can each correspond to a different sector. In cell 904, antenna groups 918, 920, and 922 each correspond to a different sector. In cell 906, antenna groups 924, 926, and 928 each correspond to a different sector. Cells 902, 904, and 906 may include a number of wireless communication devices, eg, user equipment or UEs that can communicate with one or more sectors of each cell 902, 904, or 906. For example, UEs 930 and 932 can communicate with Node B 942, UEs 934 and 936 can communicate with Node B 944, and UEs 938 and 940 can communicate with Node B 946.

  Referring to FIG. 10, a multiple access wireless communication system according to one aspect is illustrated. Access point 1000 (AP) includes multiple antenna groups, one group includes 1004 and 1006, the other group includes 1008 and 1010, and the further group includes 1012 and 1014. In FIG. 10, only two antennas are shown for each antenna group, but more or fewer antennas may be used for each antenna group. An access terminal 1016 (AT) is configured such that antennas 1012 and 1014 transmit information to the access terminal 1016 via the forward link 1020 and receive information from the access terminal 1016 via the reverse link 1018. connect. Access terminal 1022 communicates with antennas 1006 and 1008 when antennas 1006 and 1008 transmit information to access terminal 1022 via forward link 1026 and receive information from access terminal 1022 via reverse link 1024. In an FDD system, communication links 1018, 1020, 1024 and 1026 may use different frequencies for communication. For example, the forward link 1020 may use a different frequency that is then used by the reverse link 1018.

  The antennas of each group and / or the area they are planned to communicate with are often referred to as access point sectors. Each antenna group is designed to communicate to access terminals in a sector within the area covered by access point 1000. In communication via forward links 1020 and 1026, the transmit antenna of access point 1000 utilizes beamforming to improve the forward link signal-to-noise ratio for different access terminals 1016 and 1024. Also, access points that use beamforming to transmit to access terminals that are randomly distributed throughout the service area access in adjacent cells than access points that transmit to all their access terminals via a single antenna. Reduce interference with terminals. An access point may be a fixed station used to communicate with a terminal, and may also be referred to as an access point, Node B, or some other terminology. An access terminal may also be called an access terminal, user equipment (UE), a wireless communication device, terminal, access terminal or some other terminology.

  Referring to FIG. 11, system 1100 illustrates a transmission system 210 (also known as an access point) and a reception system 1150 (also known as an access terminal) in MIMO system 1100. At transmitter system 1110, traffic data for a number of data streams is provided from a data source 1112 to a transmit (TX) data processor 1114. Each data stream is transmitted via a separate transmit antenna. TX data processor 1114 formats, encodes, and interleaves the traffic data for each data stream based on the particular encoding scheme selected for that data stream to provide the encoded data.

  The coded data for each data stream may be multiplexed with pilot data using OFDM techniques. The pilot data is a known data pattern that is generally processed in a known manner and can be used in a receiving system that estimates the channel response. The multiplexed pilot and encoded data for each data stream is then sent to the specific modulation scheme (eg, BPSK, QSPK, M-PSK or M-QAM) selected for that data stream to provide modulation symbols. Based on this, it is modulated (ie, symbol mapped). The data rate, coding and modulation for each data stream may be determined by instructions performed by processor 1130.

  The modulation symbols for all data streams are then provided to TX MIMO processor 1120. This can further process modulation symbols (eg, for OFDM). TX MIMO processor 1120 then provides NT modulation symbol streams to NT transmitters (TMTR) 1122a through 1122t. In certain embodiments, TX MIMO processor 1120 applies beamforming weights to the symbols of the data stream and to the antenna from which the symbols are being transmitted.

  Each transmitter 1122 receives and processes a separate symbol stream to provide one or more analog signals, and further adjusts (eg, amplifies) the analog signals to provide a modulated signal suitable for transmission over a MIMO channel. , Filtering and up-conversion). NT modulated signals from transmitters 1122a through 1122t are then transmitted via NT antennas 1124a through 1124t, respectively.

  In reception system 1150, the transmitted modulated signals are received by NR antennas 1152a-1154r, and the received signals from each antenna 1152 are provided to individual receivers (RCVR) 1154a-1154r. Each receiver 1154 conditions (eg, filters, amplifies, and downconverts) an individual received signal, digitizes the adjusted signal to provide samples, and further processes to provide a corresponding “received” symbol stream. To do.

  RX data processor 1160 then receives and processes NR received symbol streams from NR receivers 1154 based on a particular receive processing technique to provide NT “detected” symbol streams. RX data processor 1160 then demodulates, deinterleaves, and decodes each detected symbol stream to recover the traffic data for the data stream. The processing by RX data processor 1160 is complementary to the processing performed by TX MIMO processor 1120 and TX data processor 1114 at transmitter system 1110.

  The processor 1170 periodically determines which precoding matrix to use (discussed below). The processor 1170 organizes a reverse link message consisting of a matrix index portion and a rank value portion. The reverse link message can consist of various types of information regarding the communication link and / or the received data stream. The reverse link message is then processed by TX data processor 1138. The TX data processor also receives traffic data from data source 1136 for multiple data streams that are modulated by modulator 1180, coordinated by transmitters 1154 a-1154 r, and returned to transmission system 1110. The parameters include resource allocation parameters, interference condition parameters, signal strength parameters, signal quality parameters, and quality.

  At transmitter system 1110, the modulated signal from receiver system 1150 is received by antenna 1124 to extract a reverse link message transmitted by receiver system 1150, conditioned by receiver 1122, and demodulated by demodulator 1140. And processed by the RX data processor 1142. The processor 1130 then determines which precoding matrix to use to determine the beamforming weights and processes the extracted message therefrom.

  In an aspect, logical channels are classified into control channels and traffic channels. The logical control channel includes a broadcast control channel (BCCH) which is a DL channel for broadcasting system control information, a paging control channel (PCCH) which is a DL channel for transferring paging information, multimedia broadcast and multicast service (MBMS) scheduling. And a multicast control channel (MCCH), which is a point-to-multipoint DL channel used to transmit control information for one or several MTCHs. Generally, after establishing an RRC connection, this channel is only used by UEs receiving MBMS (Note: old MCCH + MSCH). The dedicated control channel (DCCH) is a point-to-point bi-directional channel that transmits dedicated control information and is used by UEs having an RRC connection. The logical traffic channel is a dedicated traffic channel that is a point-to-point bidirectional channel dedicated to one UE for the transfer of user information, and multicast traffic for a point-to-multipoint DL channel for transmitting traffic data Channel (MTCH) is included.

  Transport channels are classified as DL and UL. DL transport channels include a broadcast channel (BCH), a downlink shared data channel (DL-SDCH)) and a paging channel (PCH). The PCH for support of UE power saving (DRX cycle is indicated by the network to the UE) is broadcast throughout the cell and mapped to PHY resources that can be used for other control / traffic channels. The UL transport channel includes a random access channel (RACH), a request channel (REQCH), an uplink shared data channel (UL-SDCH), and a plurality of PHY channels. The PHY channel includes a set of DL channels and UL channels.

  The DL PHY channel includes, for example, a common pilot channel (CPICH), a synchronization channel (SCH), a common control channel (CCCH), a shared DL control channel (SDCCH), a multicast control channel (MCCH), a shared UL allocation channel (SUACH), It includes an acknowledgment channel (ACKCH), a DL physical shared data channel (DL-PSDCH), a UL power control channel (UPCCH), a paging indicator channel (PICH), and a load indicator channel (LICH).

  The UL PHY includes, for example, a physical random access channel (PRACH), a channel quality indicator channel (CQICH), an acknowledgment channel (ACKCH), an antenna subset indicator channel (ASICH), a shared request channel (SREQCH), and a UL physical shared data channel (UL). -PSDCH) and broadcast pilot channel (BPICH).

  Other terms / components are 3G: 3 generation, 3GPP: 3 generation partnership project, ACLR: proximity channel leakage ratio, ACPR: proximity channel power ratio, ACS: proximity channel selectivity, ADS: advanced design system, AMC: adaptive modulation And coding, A-MPR: additional maximum power reduction, ARQ: automatic repeat request, BCCH: broadcast control channel, BTS: base transceiver station, CDD: periodic delay diversity, CCDF: complementary cumulative distribution function, CDMA: code division multiplexing Access, CFI: control format indicator, Co-MIMO: cooperative MIMO, CP: periodic prefix, CPICH: common pilot channel, CPRI: common public radio interface, CQI: channel quality indicator, CRC: cyclic redundancy check DCI: Downlink control indicator, DFT: Discrete Fourier transform, DFT-SOFDM: Discrete Fourier transform extended OFDM, DL: Downlink (base station for subscriber transmission), DL-SCH: Downlink shared channel, D-PHY: 500 Mbps Physical layer, DSP: Digital signal processing, DT: Development tool set, DVSA: Digital vector signal analysis, EDA: Electronic design automation, E-DCH: Enhanced dedicated channel, E-UTRAN: Evolved UMITS terrestrial radio access network, eMBMS: Evolved Multimedia broadcast multicast service, eNB: evolved Node B, EPC: evolved packet core, ERRE: energy per resource element, ETSI: European Telecommunications Standards Organization, E-UTRA: evolved UTRA, E-UTRAN Including frequency division duplex: Development UTRAN, EVM: Error Vector Magnitude, and FDD.

  Furthermore, other terms are FFT: Fast Fourier Transform, FRC: Fixed Reference Channel, FS1: Frame Structure Type 1, FS2: Frame Structure Type 2, GSM (registered trademark): Global System for Mobile Communication, HARQ: Composite Type Automatic retransmission request, HDL: Hardware description language, HI HARQ: Indicator, HSDPA: High speed downlink packet access, HSPA: High speed packet access, HSUPA: High speed uplink packet access, IFFT: Reverse FFT, IOT: Interoperability test, IP: Internet protocol, LO: Local oscillator, LTE: Long term evolution, MAC: Medium access control, MBMS: Multimedia broadcast multicast service, MBSFN: Single Multicast / broadcast over frequency network, MCH: Multicast channel, MIMO: Multiple input multiple output, MISO: Multiple input single output, MME: Mobility management entity, MOP: Maximum output power, MPR: Maximum output reduction, MU-MIMO: Multiple users MIMO, NAS: non-access layer, OBSAI: open base station architecture interface, OFDM: orthogonal frequency division multiplexing, OFDMA: orthogonal frequency division multiple access, PAPR: peak-to-average power ratio, PAR: peak-to-average ratio, PBCH: Physical broadcast channel, P-CCPCH: Primary common control physical channel, PCFICH: Physical control format indicator channel, PCH: Paging channel, PDCCH: Physical downlink control channel , PDCP: Packet data convergence protocol, PDSCH: Physical downlink shared channel, PHICH: Physical composite ARQ indicator channel, PHY: Physical layer, PRACH: Physical random access channel, PMCH: Physical multicast channel, PMI: Precoding matrix indicator , P-SCH: primary synchronization signal, PUCCH: physical uplink control channel, PUSCH: physical uplink shared channel.

  Other conditions including QAM: quadrature amplitude modulation, QPSK: horizontal phase shift keying, RACH: random access channel, RAT: radio access technology, RB: resource block, RF: radio frequency, RFDE RF: design environment, RLC: radio Link control, RMC: reference measurement channel, RNC: radio network controller, RRC: radio resource control, RRM: radio resource management, RS: reference signal, RSCP: received signal code power, RSRP: reference signal received power, RSRQ: reference signal Received quality, RSSI: Received signal strength indicator, SAE: System architecture development, SAP: Service access point, SC-FDMA: Single carrier frequency division multiple access, SFBC: Spatial frequency block coding, S-GW: Service gateway , SIMO: Single input multiple Force, SISO: single input single output, SNR: signal-to-noise ratio, SRS: sound generation reference signal, S-SCH: secondary synchronization signal, SU-MIMO: single user MIMO, TDD: time division duplex, TDMA: hour Division Multiple Access, TR: Technical Report, TrCH: Transport Channel, TS: Technical Specification, TTA: Telecommunication Union, TTI: Transmission Time Interval, UCI: Uplink Control Indicator, UE: User Equipment, UL: Uplink (Base (Subscriber to station transmission), UL-SCH: uplink shared channel, UMB: ultra mobile broadband, UMTS: universal mobile telecommunications system, UTRA: universal telescopic radio access, UTRAN: universal telescopic radio access network, VSA: Vector signal analyzer, WC DMA: Wideband code division multiplexing.

  It is noted that various aspects are described herein in connection with a terminal. A terminal may also be referred to as a system, user equipment, subscriber equipment, subscriber station, mobile station, mobile device, remote station, remote terminal, access terminal, user terminal, user agent, or user equipment. User devices include mobile phones, cordless phones, session initialization protocol (SIP) phones, wireless local loop (WLL) stations, PDAs, portable devices with wireless connectivity capabilities, modules within terminals, host devices (eg PCMCIA cards) It can be a card that can be attached or integrated, or other processing device connected to a wireless modem.

  Furthermore, aspects of the claimed subject matter implement methods, apparatus, or engineering techniques that generate standard programming and / or any combination thereof that controls software, firmware, hardware, or a computer, or an aspect of the claimed subject matter. It may be implemented as a product that uses computational components. The term “product” as used herein is intended to include a computer program accessible from any computer-readable device, carrier or medium. For example, computer readable media include, but are not limited to, magnetic storage devices (eg, hard disks, floppy disks, magnetic strips ...), optical disks (eg, compact discs (CD), digital versatile discs (DVD) ...), smart cards, and flash memory devices. (E.g., card, stick, key drive ...). Further, it will be appreciated that the carrier can be used to carry computer readable electronic data such as those used when sending and receiving voicemail or accessing a network such as a cellular network. Of course, those skilled in the art will recognize many modifications may be made to this configuration without departing from the scope or spirit of what is described herein.

  As used in this application, the terms “component”, “module”, “system”, “protocol”, etc. refer to computer-related entities, hardware, a combination of hardware and software, software or software of execution. Intended to be relevant. For example, the component is not limited, but may be a process executed by a processor, a processor, an object, an execution file, a thread of execution, a program, and / or a computer. By way of illustration, an application running on a server and the server can be a component. One or more components may exist within a thread of processing and / or execution, and one component may be localized on one computer or distributed between two or more computers.

What has been described above includes examples of one or more embodiments. Of course, it is not possible to describe all possible combinations of components or methods to describe the embodiments described above, but those skilled in the art will recognize many further combinations of various embodiments and many more combinations thereof in the prior art. It can be recognized that substitution is possible. Accordingly, the described embodiments are intended to embrace all such alterations, modifications and variations that fall within the spirit and scope of the appended claims. Further, to the extent that the term “comprising” is used in either the detailed description or the claims, such terms are interpreted when “comprising” is employed as a provisional term in the claims. It is intended to be comprehensive in a manner similar to the term “compose”.
The invention described in the scope of the claims at the beginning of the present application is added below.
[1] Applying independent power control to two or more carriers from a set of packet access signals, monitoring power across the two or more carriers to determine a power level for the set of packet access signals And automatically adjusting at least one of the independent power controls in view of the power level for the set of packet access signals.
[2] The method according to [1], wherein the independent power control is incrementally controlled as up or down control, where up represents an increase in power and down represents a decrease in power.
[3] The method of [1], further comprising statically dividing power over the two or more carriers.
[4] The independent power control may be a high-speed uplink packet access network (HSUPA), a high-speed downlink packet access network (HSDPA), an enhanced data channel (E-DCH), an enhanced dedicated physical data channel (E DPDCH), or a high-speed dedicated The method according to [1], which is applied according to a physical data channel (HS-DPDCH).
[5] The method of [1], further comprising ordering the two or more carriers in a sequential manner and sequentially controlling a power level between the two or more carriers.
[6] The method of [5], further comprising increasing or decreasing the two or more carriers in a sequential manner.
[7] The method of [5], further comprising ordering the two or more carriers according to priorities including channel quality parameters, grants, current data rate, anchor carrier state or non-anchor carrier state.
[8] The method of [5], further comprising applying a down command before controlling a power level between the two or more carriers.
[9] The method of [8], further comprising calculating and allocating power between the two or more carriers having an up command.
[10] The method of [7], further comprising sequentially charging the two or more carriers according to the priority.
[11] The method of [1], further comprising: calculating power over the two or more carriers in a parallel manner; and jointly controlling power levels over the two or more carriers.
[12] The method of [11], further comprising increasing or decreasing the power level across the two or more carriers in a parallel manner.
[13] The method of [11], further comprising applying a down command before controlling a power level between the two or more carriers.
[14] The method of [11], further comprising calculating and distributing power between the two or more carriers having an up command.
[15] The method of [14], further comprising calculating a maximum data rate, and distributing power over the two or more carriers according to a water injection algorithm.
[16] applying independent power control to two or more carriers from the set of packet access signals, determining power across the two or more carriers to determine a power level for the set of packet access signals; A communication device comprising: a memory that holds an instruction for adjusting at least one of the independent power controls in consideration of the power level for the set of packet access signals; and a processor that executes the instruction. .
[17] The communication device according to [16], further comprising: ordering the two or more carriers in a sequential manner; and sequentially controlling a power level between the two or more carriers.
[18] The communication device according to [17], further including increasing or decreasing the two or more carriers by a sequential method.
[19] The communication device of [17], further comprising: ordering the two or more carriers according to a priority including a channel quality parameter, a grant, a current data rate, an anchor carrier state or a non-anchor carrier state.
[20] The communication device according to [19], further including sequentially charging the two or more carriers according to the priority.
[21] The communication device according to [16], further comprising: calculating power over the two or more carriers in a parallel manner; and jointly controlling a power level over the two or more carriers.
[22] The communication device according to [21], further comprising increasing or decreasing the power level over the two or more carriers in a parallel manner.
[23] The communication device of [22], further comprising: calculating a maximum data rate; and distributing power over the two or more carriers according to a water injection algorithm.
[24] means for controlling two or more carriers from a set of packet access signals; means for determining a power level for the set of packet access signals; and the power level for the set of packet access signals. Means for adjusting the carrier power in an independent manner in consideration.
[25] The communication device according to [24], further including a component that orders the two or more carriers in a sequential manner, and sequentially controlling a power level between the two or more carriers.
[26] The communication device according to [24], further including a component that determines power over the two or more carriers in a parallel manner, and jointly controlling a power level over the two or more carriers.
[27] A code for causing a computer to control power for two or more carriers from a set of packet access signals, and the two or more carriers for determining a power level for the set of packet access signals. Power for causing the computer to monitor power and code for causing the computer to adjust at least one of the independent power controls in view of power levels for the set of packet access signals. A computer program product comprising a computer readable medium containing code for controlling the control.
[28] The computer program product of [27], further comprising code for causing the computer to increase or decrease power to the group of carriers in a sequential or parallel manner.

Claims (14)

Applying independent power control to two or more carriers from a set of packet access signals;
Monitoring power across the two or more carriers to determine a power level for the set of packet access signals;
Automatically adjusting at least one of the independent power controls in consideration of the power level for the set of packet access signals; the independent power control is incrementally controlled by power up and power down commands ; Up represents an increase in power, down represents a decrease in power, and
Ordering the two or more carriers in a sequential manner and sequentially controlling a power level between the two or more carriers;
Including a wireless communication method.   The method of claim 1, further comprising statically dividing power across the two or more carriers. The method of claim 1, further comprising the increasing or decreasing of the two or more carriers in a sequential manner. Channel quality parameters, allow the current data rate, the anchor carrier state, further comprises or in accordance with the priority that includes a non-anchor carrier state that ordering the two or more carriers, the method of claim 1. It said further look including applying the down command before controlling power levels between two or more carriers, it preferably to calculate the power between the two or more carriers with up command, distributes the method of claim 1, further comprising a. The method of claim 1, further comprising a filling sequentially power to the two or more carriers in accordance with the priority. And calculating the power across the two or more carriers in a parallel way, further comprising controlling jointly the power level across the two or more carriers, the method of claim 1. 8. The method of claim 7 , further comprising increasing or decreasing the power level across the two or more carriers in a parallel manner. 8. The method of claim 7 , further comprising applying a down command before controlling a power level between the two or more carriers. 8. The method of claim 7 , further comprising calculating and distributing power between the two or more carriers having an up command. Means for applying independent power control to two or more carriers from a set of packet access signals;
Means for monitoring power across the two or more carriers to determine a power level for the set of packet access signals;
Means for automatically adjusting at least one of the independent power controls in consideration of the power level for the set of packet access signals; and the independent power control is incrementally increased by power up and power down commands. Controlled, up represents power increase, down represents power decrease,
Means for ordering the two or more carriers in a sequential manner and sequentially controlling a power level between the two or more carriers;
A communication apparatus comprising: 12. The communication device of claim 11 , further comprising a component that orders the two or more carriers in a sequential manner and sequentially controls a power level between the two or more carriers. 13. The communication device of claim 12 , further comprising a component that determines power across the two or more carriers in a parallel manner and jointly controls a power level across the two or more carriers. Any steps described in one item including code for causing execution, a computer readable storage medium comprising code for controlling the power of the claims 1 to 10 to the computer.

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